ZOLIX AutoScrew.LR Piezo-Driven Linear Translation Stage

Overview

The ZOLIX AutoScrew.LR is a compact, high-precision piezo-driven linear translation stage engineered for demanding optical alignment and positioning tasks in laboratory and industrial optical setups. Unlike conventional stepper- or servo-motor-based stages, the AutoScrew.LR employs a patented piezoelectric screw-drive mechanism—combining the sub-nanometer resolution of piezoelectric actuation with the mechanical advantage and self-locking behavior of a precision lead screw. This hybrid architecture delivers true open-loop nanoscale positioning without active power consumption during static hold, eliminating thermal drift and enabling stable, zero-heat-position retention—an essential requirement for interferometric alignment, cavity length tuning, and long-duration beam path stabilization. Designed specifically for integration into optical breadboards, kinematic mounts, and modular optomechanical systems, the AutoScrew.LR maintains full compatibility with standard M4 and M6 mirror mount threading, allowing direct mechanical coupling to commercial optical carriers without adapters.

Key Features

• Piezo-screw hybrid actuation enables 20 nm typical minimum step size with no hysteresis compensation required in open-loop operation
• Self-locking at rest: 100 N holding force in horizontal orientation; 5 N in vertical configuration—no power draw, no heat generation, no positional creep
• 6 mm total travel range with mechanical repeatability better than ±50 nm (3σ) under recommended mounting conditions
• Stainless steel monolithic body (AISI 304) ensures dimensional stability, vacuum compatibility (HV version available), and non-magnetic performance (.NM variant)
• D-Sub9 interface with shielded cabling supports standardized analog voltage input (0–10 V) and TTL synchronization signals for synchronized multi-axis motion control
• Compatible with ZOLIX Newton Series motion controllers and third-party systems supporting piezo-screw driver protocols (e.g., Thorlabs K-Cube, Newport ESP300 via custom profile)

Sample Compatibility & Compliance

The AutoScrew.LR is optimized for use with standard optical components—including lens tubes, mirror mounts, fiber launchers, and polarization rotators—via its M4/M6 threaded top plate. Its low-profile form factor (12 mm height) minimizes moment arm effects and supports rigid mounting on vibration-isolated optical tables. The stage meets ISO 9001 manufacturing standards and complies with CE electromagnetic compatibility (EMC) directives (2014/30/EU). For high-vacuum applications, the .HV variant features UHV-compatible stainless steel construction, metal-sealed feedthroughs, and outgassing rates <1×10⁻⁹ Pa·m³/s per cm² (per ASTM E595). The .NM version satisfies magnetic susceptibility requirements for ultra-low-field MRI optics and magneto-optic experiments (≤1×10⁻⁶ emu/g).

Software & Data Management

Control firmware supports both analog voltage modulation and digital command sets (ASCII over RS-232 or USB virtual COM port). When paired with ZOLIX Newton Controller software (v4.2+), users gain access to programmable motion profiles, real-time position logging (up to 1 kHz sampling), and audit-trail-enabled calibration history tracking—fully compliant with GLP and GMP documentation workflows. Export formats include CSV and HDF5, enabling seamless integration with Python-based analysis pipelines (e.g., SciPy, PyVISA) and MATLAB instrument control toolboxes. Firmware updates are delivered via signed binary packages with SHA-256 verification to ensure traceability and integrity in regulated environments.

Applications

• Precision alignment of laser cavities, external resonators, and LIGO-style interferometers
• Active feedback loops in adaptive optics systems requiring sub-50 nm closed-loop correction bandwidth
• Positioning of photonic integrated circuit (PIC) couplers and grating-based wavelength selectors
• Thermal-drift-compensated sample scanning in Raman and fluorescence microscopy stages
• Multi-axis beam steering assemblies where power-off position retention is mandatory (e.g., emergency shutdown protocols)
• Integration into automated optical test benches compliant with IEC 61215 (PV module characterization) and ISO 10110 (optical element specification)

FAQ

Does the AutoScrew.LR require continuous power to maintain position?
No. The piezoelectric screw drive provides intrinsic mechanical self-locking; position is retained indefinitely without power or heat generation.
What is the difference between the .HV and .NM variants?
The .HV version uses vacuum-rated materials and seals for pressures down to 10⁻⁷ mbar; the .NM variant replaces ferromagnetic fasteners and shielding with titanium and austenitic alloys to achieve <1 µT residual field influence.
Can multiple AutoScrew.LR stages be synchronized?
Yes—using ZOLIX Newton Series controllers with master-slave trigger distribution or third-party timing hubs supporting PPS and TTL gate signals.
Is backlash compensation implemented in firmware?
No. The screw mechanism is preloaded to eliminate mechanical backlash; bidirectional repeatability is achieved inherently without software correction.
What environmental certifications does the standard model carry?
CE (EMC & LVD), RoHS 3, and REACH SVHC-compliant materials declaration—full test reports available upon request for ISO 17025-accredited labs.